A computer interlocking data acquisition control security processing method

A technology of computer interlocking and safety processing, applied in program control, general control system, control/adjustment system, etc., can solve the problems of low reliability and safety, high error rate of data acquisition and control, etc., achieve high safety and reduce The effect of error rate and ease of distributed expansion

Active Publication Date: 2021-04-13
NARI TECH CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art, provide a computer interlocking data acquisition and control security processing method, and solve the problem of high error rate, low reliability and security in the prior art of computer interlocking system data acquisition and control technical problem

Method used

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  • A computer interlocking data acquisition control security processing method
  • A computer interlocking data acquisition control security processing method

Examples

Experimental program
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Embodiment Construction

[0051]The computer interlock data acquisition control method provided by the present invention is divided into two channels, and the two channels are also called two channels, and the period is channel 2, and each variable is 32-bit parity security encoding. Declaration, and each cycle uses a different polynomial division to operate, and through the system calibration generated by 32-bit secure encoding operations throughout the data processing process. Specifically, the following steps:

[0052]1) Independent clock calculation and checking, including:

[0053]a. Get the milliseconds, microsecond counts of the current independent clock, calculate this cycle clock count;

[0054]b. The system processing cycle count is obtained according to the last cycle clock count.

[0055]2) Memory refresh, including:

[0056]a. Clock school nuclear memory refresh;

[0057]b. Systematic nuclear word memory refresh;

[0058]C. Channel memory refresh.

[0059]3) Control data reception, including:

[0060]a. System receive cac...

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Abstract

The invention discloses a computer interlocking data acquisition control safety processing method, which is characterized in that: 1) independent clock calculation and verification; 2) memory refresh; 3) control data reception; 4) control data reception overtime verification; 5) Control data output; 6) Safe collection of input data and safe recovery of control data; 7) Calculation system check word and send, collect data and send. Compared with the prior art, the present invention provides an efficient and safe computer interlocking data acquisition control method, which ensures that the computer interlocking can safely and efficiently output the Boolean logic operation results to the trackside equipment and safely and reliably provide the computer interlocking Boolean logic The calculation provides the status of the wayside equipment, which improves the timeliness and safety of the computer interlocking system.

Description

Technical field[0001]The present invention relates to a computer interlock data acquisition control safety processing method, which belongs to the technical field of computer security information processing.Background technique[0002]At present, my country has developed a large number of rail transit industries and rail transit as a large-capacity public transport. Its safety is directly related to the lives of passengers, so it is highly reliable, high and secure characteristics in the rail transit industry. It can realize the main functions such as safety information acquisition and safety information output and safety logic operation processing, and the safety integrity level reaches the highest level of SIL4, which is in line with the "fault-security" principle.[0003]In the computer interlock system, the security of the data is the security of the control output is the key link of the entire interlock system security. The security integrity level of the system must reach the SIL4...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B23/02
CPCG05B23/0213G05B2219/24065
Inventor 徐宏伟梁奕陆艮峰闫春乐丁志燕魏源
Owner NARI TECH CO LTD
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